Author
Topic: Hiccup climbing hills (Read 1459 times)

I own a 2012 Jayco Embark on Freightliner M2 chassis with Cummins ISC. I have noticed on some trips thru West Virginia mountains that during long climbs, the engine will hiccup, or chug, and then return to normal. Its as if the engine actually stops running for .25 second, then starts/runs again. Do I need to do a regen, or is this normal?